mAh, short for milliampere hours, is the unit used to measure the amount of overall battery capacity a cell has. The more mAh the battery is rated at, the longer the battery will maintain its charge.
Amperage is the maximum amount of power output the battery cell can provide. Higher amperage ratings indicate a higher power output, which ultimately lends itself to a stronger draw for vapes.
mAh and amperage are opposing aspects, so higher mAh will dictate a lower amperage. In the same way, higher amperage cells will have a lower mAh rating. Put more simply, the higher the power output, the faster it will deplete the battery’s charge.
These factors are important to keep in mind when selecting battery cells for your device. If you prefer a stronger hit and don’t mind a shorter battery life during the day, then a higher amperage cell is right for you. But if you’re alright with a more moderate performance and want a longer-lasting battery life, go for a higher mAh battery.